1·Square waves, like sine waves, are periodic.
方波如正弦波一样是周期性的。
2·Next, imagine the combination of several sine waves.
接著，想像有数个正弦波的组合。
3·In general, sounds are represented by a sum of sine waves.
一般的，声音表现为多个正弦波的叠加。
4·Sine waves, or sinusoids, are graphs of mathematical functions.
正弦波，或正弦曲线，是数学函数的图形。
5·Fourier analysis is the mathematical method used to break sounds down into sine waves.
傅里叶分析是将声音分解为正弦波的数学方法。
6·Some sine waves are harmonic whose frequency does not equal to the frequency of fundamental component.
有些正弦波谐波，其频率不等于频率的基本组成部分。
7·They thus have sine waves with large amplitudes and short wavelengths, both of which make them easy to see.
这样，这些大行星就具有大振幅与短的波长“正弦波”曲线，而这两种特性让它们能更容易地被观察到。
8·When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves.
说到如何用图像表示声音，大多数人都会想起与音量有关的正弦曲线。
9·Phase Angle Phase Angle refers to the relation between two sine waves which do not pass through zero at the same time.
相角相角指的是两个不同时经过零点的正弦波之间的关系。
10·Every month for the past 18 years, he has tuned in to the signal coming from 55 Cancri A. Gradually, the separate sine waves have become visible.
在过去十八年的每个月中，马西博士都会接受恒星“55 Cancri A”发出的讯号。 逐渐地，“正弦波”曲线出现明显的分离。